Duplex writing implement



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Jam 29 192 A. vnsumcamq DUPLEX WRITING IMPLEMENT Filed April 18 1922 R m N w W Hun \N 1 00 Fatcented dent. 2Q, 1122.

MEQEITO WISITACIUN, GE BROOKLYN, NEW YQRK.

DUPLEX ITING IWLEMEN'E.

Application filed April 18,1922. Serial No. 5%,1103.

To all whom it may concern:

Be it known that I, Amcn'ro VIsrrAoIoN,

a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Duplex W'riting Implements, of which the following is a specification.

This invention relates to improvements in pens and pencils and more particularly to those of duplex type, designed for use by bookkeepers, accountants, and other professions requiring the use of vari-colored inks.

Another object of the invention is to provide a pen or pencil having independent means for writing in one or more colors.

A further object of the invention is to provide a device having a movable point which may be withdrawn to an inoperative position, thereby exposing the stationary point so that it may be readily used.

As a further object, the invention contemplates the location of the movable point when projected, in such a position as to render the stationary point inoperative.

With these and other objects in view, the invention consists of the novel construction, combination and arrangement of parts which will be fully set forth in the following specification, and illustrated in the accompanying drawing, in which Figure 1 is a side view of a fountain pen constructed in accordance with this invention.

Figure 2 is a longitudinal s*ctional view through the body of the pen and taken at a right angle to Figure 1.

Figure 3 is a fragmentary side view of the side of the pen opposite that shown in Figure 1.

Figure 4 is a transverse sectional view taken on line 4-4 of Figure 2.

Figure 5 is a transverse sectional view through a modified body portion of the pen, illustrating the interior construction, and drawn to a greatly enlarged scale.

In the drawings, the numeral 10 designates the pen body or.housing,which consists of a-cylindrical member provided with longitudinal bores 11 and 12 circular or elliptical for containing the stationary and movable reservoir and the associated elements.

As illustrated in Figure 2, these bores extend from the writing and to a point near the opposite end and formed in the walls of said bores are slots 13, in which filling levers 1d, are pivoted in the customary manner.

Fitted in the Writing end of the body 10, 1s a tapered collar 15, provided with bores 16 for the reception of the ducts 17, in which the nibs 18 and 19 are supported. Extendmg inwardly from the inner end of the stationary duct 17, is the stationary reservoir 20, intended to contain writing fluid of a certain color.

Fitted around the upper end of the movable duct 17, is a tubular housing 21, having a longitudinal slot 22, to accommodate the reservoir compressing shield 23 of the movable member. A pliant reservoir 24 is contamed within the housing 21 and is connected at its outer end to the movable duct 17 and, as shown in Figure 2, the reservoir 24 and housing 21 are of lesser length than the reservoir 20, so as to be readily accommodated when in withdrawn position in the bore 12.

It is to he understood that the bore 11 is of smaller diameter than the bore 12, so that the volume of ink contained in the reservoir 24 may be approximately equal to that contained in the reservoir 20.

In order that the nib 19 may be Withdrawn so as to render the nib 18 unobstructed, the writing end of the body 10 is provided with a longitudinal slot 25, for the accommodation of the shank 26 of a knob 27 disposed on the exterior of the .body.

The inner end of the shank is connected to the housing 21, and it will thus be obvious that upon moving the knob 27 up or down in the slot 25, the nib 19 may be retracted or projected.

A bowed spring 28 is arranged in the slot 25 in position to engage the shank 26 and hold the movable nib in either of the suggested positions.

The modification shown in Figure 5, illustrates a pen or pencil body of a greater diameter, lightened in weight by opposed longitudinal cut which also serve to render the grip of the fingers of an operator more effective It will be obvious that various colored pencils may be substituted for the ink reservoirs and pen points, one of the pencils being directly engaged by the knob 27, Without material change in construction of the implement.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that certain minor changes in the details of construction, combination and arrangement of parts may be resorted to Without depart ing from the spirit and scope of the invention as claimed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A writing implement comprising a body having a pair of longitudinally extending parallel bores of unlike sectional area said body having an elongated slot near its operative end therein, a stationary marking point contained in one of the bores, a movable marking point in theother bore, means for projecting said movable marking point into position to obstruct the point of the stationary element, and a bowed spring fixed in the mentioned slot for holding said movable point in either of its adjusted positions.

2. A duplex fountain pen comprising a body having a pair of parallel bores of unlike sectional area, said body having an elongated slot near its operative end, a stationary nib projecting from one end of the bodK in alinement with one of the bores, an in reservoir associated with the stationary nib,

a movable nib in alinement with the other body having a pair of parallel bores of unequal area. a stationary nib projecting from one end of the body in alinement with one of the bores, an ink reservoir associated with the stationary nib, a movable nib in alinement with the other bore, there being a slot in said body adjacent said movable nib, a reservoir associated with the movable nib, a knob operable in the slot to move the movable nib and its respective reservoir, and an elliptic spring in the slot to hold the movable nib in either retracted or projected position.

In testimony whereof I have signed my name to this application.

ANICETO VISITACION. 

